Firefox 4. What is the difference between addons.sqlite and extensions.sqlite in the profile folder?

I have separate facilities 3.6.15 Firefox and Firefox 4RC2, using their own separate and distinct profile folders.

I already know that, in the profile folder:

  • Firefox 3.6.x has extensions.log, extensions.ini and extensions.rdf files
  • Firefox 4 has replaced extensions.rdf with extensions.sqlite
  • Firefox 4 has apparently no extensions.log
  • Firefox 3.6.x does not have addons.sqlite
  • Firefox 4 is has addons.sqlite

For a better understanding of the present, can someone please clearly, answer the following 3 questions?

What is

  1. the purpose of addons.sqlite in Firefox 4?
  2. How it / its function differ from the extensions.sqlite in Firefox 4
  3. both are really necessary?

addons.SQLite stores the information that appears in the tab Addons > Extensions - under the button more , as well as the AMO URL for extensions that are not configuration to use this new feature.

Extensions.SQLite stores the data on the installed extensions, by replacing the extensions.cache and extensions.rdf files.

You really not need the addons.sqlite file, but I do not know the ramifications to delete the content of this file and 'locking' so that it is used. Not that it stores a large amount of data; only 320kb with 30 installed extensions.

Tags: Firefox

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